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← ScienceWhich consequence results when a nuclear medicine technologist accidentally punctures a vial of technetium-99m?
A)Shielding integrity becomes fatally compromised.
B)Radiation dose rate near increases sharply.✓
C)A cascade reaction causes rapid heating.
D)Radioactive Xenon-133 gas generation accelerates.
💡 Explanation
Increased airborne concentration occurs because radioactive decay proceeds regardless, and the inverse square law means that removing shielding via physical breach results leads to a higher surface dose rate; therefore the radiation near rapidly increases, rather than causing the other effects.
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